M. : Children's literature, 1969. - 132 s. 2nd Edition, amended and revised . Earthquakes occur every year on the planet.. These terrible natural disasters are taking thousands of lives, causing tremendous damage. What processes in the depths of the Earth cause earthquakes? This question has long worried scientists, because if you know the causes of earthquakes, you can learn to predict them, and then humanity will be spared from many losses and destruction Much about earthquakes is already known to science........ [ From the book A. [ and . You will learn that earthquakes are of different types, different in strength and consequences. You will learn how to determine the sources and strength of earthquakes in different parts of the world. The author of the book also tells about how scientists gradually penetrate into the secrets of the subcortical substance - it is from there that many tremors come . Not all issues are resolved. They are set. They will be dealt with in the near future....